Core for manufacture of pneumatic-tire casings.



P; E. WE LTON.

CORE FDR MANUFACTURE OF PNEUMATIC TIRE CASINGS. APPLICATION FILE D MAR. 10, 1913.

1,144,671. r Patentd June 29, 1 915.

lmfnesjm ,F .0, QZIjZZjZZ". C fi/M M fi 25 such manner as to permit the core vt x,

egeem.

T all whom it may concern:

Beit knewn that I, PARK citizen of the United States, 1 Akron, in the ceunty of Summit 5 of Ohio, have invented a certain new useful Improvement in Cores for Menu: tm'e sf Pneumatic llire Casings, ef which the following is a full, clear, and exaet scription.

This invention relates to the lapsible cores which are chiefly ese in manufectureof the outer casings 01'' 301 tube pneumatic tires.

The object is to provide a core 1;

made up of a plumliey of core mere pable of being quickly and eccui'e'tel bled and connect-eel to farm an and of being easily ancl quiekl k and removed one by one from the 5m tire casing.

The invention relates particularly the means by which the adjacent eni s members may be quickly and. eesiiy sen ed in operative relation 0r (llS-CODIEQCEQ lapsed or disassembled the suceessive Ward movement- 'that is mevemen the center of the annular eore e'f eral core sectionsw In the complete and. pree'rf form of the invention, shown ing. the means for ecent ends 01 in providing eaci to the joint between directed flange Wli' i slots extending be ting ends, and in prexplates which are seem? l is 40 the flange of the cere member to be removed in ciisassei' b which plates everlep i the abutting core memeer,-l: ing formed Wiilll slots wiii each other and W112} the sle flanges, and the eve-ir e plates having lnwm'dl "lbs, and the CVffill" SQCtl-Jlifi having V 3 said ribs,w1

iembei D 9-) i is of: suit rected V-shaped ribs 0 pair of plates 11 show as clearly tions adjacent to the joints between sections which are connected by the means shown; but the flanges serve useful functions in the making and vulcanizing "of the tire casing,

and therefore these flanges are made coex tensive with the sections of which they are parts.

The ends of the key section are parallel. and so also are the ends of sections B, B, against which said ends abut when the key section is in place. In the flange cl, of the key section, at each end thereof, is a slot (Z which extends from they end of the flange backward in an approximately circumferential direction. The slot does not, perhaps, as mightbe in the drawing, but it is precisely like the slot 6 shown in Fig. 1. In the adjacent end of the flange b of each of the abutting sections B, B, is a slot 6 which extends from its end backward in an approximately circumferential d rection, each of said slots b being placed so that they will be alined with the adjacent slot d in the adjacent end of the flange cl when the key, section is in place.

Two connecting at each joint between the key section and the two adjacent sections B, B. These plates are secured to opposite sides of the flange {1. Each pair of plates E projects beyond the adjacent end of the flange to which they are secured, and overhang opposite sides of the adjacent end of a flange b. A slot e is formed through each pair of plates E, which slot registers with and is'coextensive with the slots (Z and F7 in the flanges (Z and I).

A bolt G passes through he slots 6 in both plates and is provided with heads 9 on both ends outside of said plates. So long as these heads are secured on the bolt ends said bolts cannot be withdrawn from said slots. Preferably the heads 9 screw onto opposite ends of the bolts so that they may be adjusted as required to take up wear upon their inner faces or upon the outer faces of the plates E with which they cooperate.

Near the free ends of the platesvE, and on the inner faces thereof are the inwardly diwhich extend in directions parallel with the ends of section D. In the outer faces of the adjacent flanges b are V-shaped grooves b which are parallel with the plane of division between section D and the sections, B, B. They are so placed that they will receive the V-shaped ribs (2 when the key section is in place. In fact, when the key section is being slipped into or withdrawn from its place in the annulus, the

plates Eembrace the adjacent flanges 7), and these ribs 0 enter and slide in the grooves Z)". As shown, the outer surfaces of each I are inclined away from each other toward their free ends, whereby plates E, 'E are employed employed,

the distances between said outer faces gradually increases toward said free ends.

Until the key section D has reached its proper position between the ends of the adj acent sections B, the bolts G are back in the inner ends of the slots 6. When the key member D has. been properly positioned between the'ends of the section B, the work man slips the bolts G along the slots .e'.

These bolts will enter the slots 6 in'the,

adjacent ends of the flanges b, and these oppositedireetion in the slots 6, so as to be inside of the ends of the flange d. When, now, the freed key member is moved inward toward the center of the annulus, the plates E go with it, and do not therefore interfere with such movement, as they would, if they were attached to the flanges 6 instead of to the flange d. Likewise the bolts remain connected with the key member so that they cannot be lost or misplaced. They are where they are wanted for use when the key member is again slipped into place to com-- plete the core.

, from the core, the bolts G are moved in the I When the key memb has been removed from the annular cure, the sections B, B-

must be moved inward toward the center of the annulus to withdraw-them from the tire casing; and any two sections B, B with section A could be provided it would permit such inward movement;. but the connecting devices used at the joints between the key member and the members B can be, and

means for connecting the preferably is used for separably connecting the members B. to the member A. That is to say, to the flange b of each member '13, so

as to overhang the adjacent part of the flange a of the member A. These plates are provided with slots e. The ends of the flanges Z) between the plates are provided with registering slots 6 formed in each end of the flange a, which slot is substantially like the slot 6 and registers with the slots 6. The V-shaped ribs 9 are formed on the inner faces of the free ends of the plates E and they are arranged to engage in V-shaped grooves a inv the flanges a, said grooves and ribs being par- An ahned slot istwo plates E are secured.

it overhangs,

registers in bolt 'al i laterally hanging; end or "in on merit-shape c Wise, the when flanges alined ends flange e end. e flange of has slot Which passe slots for ci the plate to said last groove who section of i. said plate h 'Wardi r ZEN/Eli" 1 ions caving ovt nd "for d plates. 1 (r core coinncsed one 1 ,ej to sh rt ens oination of inwar iff directed sections alined slotsoxtend". {ward from the ends of said flanges, l ates fixed to flange of one section and embracing opposite sides of the iizxige of the abutting section, which slates have slots which register with the with the outer sursmd plates .11. annular core composed of seghave slots which register with the flanges, and have their external inclined and-dii 'erging toward their s, and said plates having near their h are parallel with the end of the secon, and the overhung flange on the abutsection being provided with 'V-shaped rooves adapted to receive said ribs.

6. An annular core composed of a plurality of seginent'sheped sections, of which the key section has parallel ends, said key ion and the sections adjacent thereto inwardly directed flanges inWhich slo s which extend from their b ckward, plate secured to the flange section adjacent to each end thereand overhanging the flanges of adjacent sections, said plates having slots which register with slots in said flanges, and bolts which are siidahle laterally in said slots and have heads on their opposite ends.

'7. An annular core composed of a plurality of segment-shaped sections, of which the key section has p'arallel ends, said key section sections adjacent thereto. havcored to the flange of the key section to end thereof and overhanging the flanges of abutting pistes having near their free My directed i-shaped grooves ends which are parallel with the ends of the key flanges which said plates provided with V-shaped to respectively receive said for moving said plates in force said ribs into said section, and the overhang being grooves adapted ribs, and means the diicction to grooves.

3. An annular core composed of a plurality of segment-shaped sections, of which the f section has parallel ends, said key secelon and the sections adjacent thereto having inwardly directed annular flanges in which are olined slots extending from their ends backward, two plates secured to opposite sides of the flange of the key section adjacent to each end thereof and overhanging and engaging the flanges of the abutting slots and has heads v sections adapted to abut'end e of the shutting section, which nds inwardly directed V-shaped ribs" war-ally directed annular flanges, a

sections, said plateshaving slots which register with the slots in said flanges, and said plates havingalso near their free ends inwardly directed V-shaped grooves which are i parallel with the ends of the key section, and the outer surfaces of each pair of plates being inclined so as to diverge toward their free ends, and-the flanges which said plates overhang being provided with V-shaped 1 grooves adapted to respectively receive said opposite ends.

0 In testimony whereof; I hereunto aflix-my signature in the presence of two-witnesses. 15

PARK E. WELTON. Witnesses:

HARRY A. WELTON. J. E. VVEISER. 

